/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.airavata.workflow.model.graph.system;
import java.util.List;
import org.apache.airavata.workflow.model.component.ComponentDataPort;
import org.apache.airavata.workflow.model.component.system.DoWhileComponent;
import org.apache.airavata.workflow.model.graph.DataPort;
import org.apache.airavata.workflow.model.graph.Graph;
import org.apache.airavata.workflow.model.graph.GraphException;
import org.apache.airavata.workflow.model.graph.GraphSchema;
import org.apache.airavata.workflow.model.graph.Node;
import org.xmlpull.infoset.XmlElement;
public class DoWhileNode extends SystemNode {
private static final String XPATH_TAG_NAME = "xpath";
private String xpath;
/**
* Creates a InputNode.
*
* @param graph
*/
public DoWhileNode(Graph graph) {
super(graph);
this.xpath = "$1";
}
/**
* Constructs a InputNode.
*
* @param nodeElement
* @throws GraphException
*/
public DoWhileNode(XmlElement nodeElement) throws GraphException {
super(nodeElement);
}
/**
*
* @return
*/
@Override
public DoWhileComponent getComponent() {
DoWhileComponent component = (DoWhileComponent) super.getComponent();
if (component == null) {
// The component is null when read from the graph XML.
component = new DoWhileComponent();
setComponent(component);
}
return component;
}
/**
* Adds additional input port.
*/
public void addInputPort() {
DoWhileComponent component = getComponent();
ComponentDataPort input = component.getInputPort();
DataPort port = input.createPort();
addInputPort(port);
}
public DataPort addInputPortAndReturn() {
DoWhileComponent component = getComponent();
ComponentDataPort input = component.getInputPort();
DataPort port = input.createPort();
addInputPort(port);
return port;
}
public void removeInputPort() throws GraphException {
List<DataPort> inputPorts = getInputPorts();
// Remove the last one.
DataPort inputPort = inputPorts.get(inputPorts.size() - 1);
removeInputPort(inputPort);
}
/**
* Adds additional output port.
*/
public void addOutputPort() {
DoWhileComponent component = getComponent();
ComponentDataPort outputPort = component.getOutputPort();
DataPort port = outputPort.createPort();
addOutputPort(port);
}
/**
* Removes the last output port.
*
* @throws GraphException
*/
public void removeOutputPort() throws GraphException {
List<DataPort> outputPorts = getOutputPorts();
// Remove the last one.
DataPort outputPort = outputPorts.get(outputPorts.size() - 1);
removeOutputPort(outputPort);
}
public DataPort getFreeInPort() {
List<DataPort> inputPorts = this.getInputPorts();
for (DataPort dataPort : inputPorts) {
if (null == dataPort.getFromNode()) {
return dataPort;
}
}
addOutputPort();
return addInputPortAndReturn();
}
@Override
protected void parseConfiguration(XmlElement configElement) {
super.parseConfiguration(configElement);
XmlElement element = configElement.element(null, XPATH_TAG_NAME);
if (element != null) {
this.xpath = element.requiredText();
}
}
@Override
protected XmlElement toXML() {
XmlElement nodeElement = super.toXML();
nodeElement.setAttributeValue(GraphSchema.NS,
GraphSchema.NODE_TYPE_ATTRIBUTE, GraphSchema.NODE_TYPE_DOWHILE);
return nodeElement;
}
@Override
protected XmlElement addConfigurationElement(XmlElement nodeElement) {
XmlElement configElement = nodeElement.addElement(GraphSchema.NS,
GraphSchema.NODE_CONFIG_TAG);
if (this.xpath != null) {
XmlElement element = configElement.addElement(GraphSchema.NS,
XPATH_TAG_NAME);
element.addChild(this.xpath.toString());
}
return configElement;
}
/**
* @return
*
*/
public EndDoWhileNode getEndDoWhileNode() {
List<DataPort> outputPorts = this.getOutputPorts();
for (DataPort dataPort : outputPorts) {
List<Node> toNodes = dataPort.getToNodes();
for (Node node : toNodes) {
if (node instanceof EndDoWhileNode) {
return (EndDoWhileNode) node;
}
}
}
return null;
// throw new
// XBayaRuntimeException("EndDoWhile node was not found for the DoWhileNode:"+this.id);
}
public String getXpath() {
return xpath;
}
public void setXpath(String xpath) {
this.xpath = xpath;
}
}